Lenz's law demonstration

Numéro d’image : 13618987
Lenz's law demonstration
Lenz's law demonstration, 1 of 2. Lenz's law is demonstrated using two metal hoops (one open and one closed) that are balanced by and can freely rotate around a centrally mounted pin. Lenz's law states that the current induced in a closed loop due to the change in the magnetic flux through the loop is directed to oppose the change in flux, thus exerting a mechanical force which opposes the motion. Photo 1: when the magnet is moved away from the closed hoop, the flux through the hoop decreases. As a result, the hoop moves towards the magnet. Photo 2: when the same experiment is repeated with the open hoop, the hoop does not move as induced circular current can not flow.
Licence : Droits gérés
Crédit: Science Photo Library / Turtle Rock Scientific
Taille de l’image : 5170 px × 3389 px
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Property Release : Non requis
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